Filtering-flue for gas-ranges



M. E. KOEHLER.

FILTERI'NG FLUE FOR GAS RANGES.

APPLICATION FILED DEC.3, 1920 1,877fi9% Patented May M, 19211.

INVENTOR. I ATTORNEY.

nairan MATES PATENT TltiE.

FILTETEING-FLUE E01 3, GiEifi-HAN Specification of Letters Patent.

Patented May Ml, 11.921.

Application filed December 3, 1920. Serial No. 428,044.

1 0 all whom it may concern Be it known that I, MAXEMILEAN E. Konrrnnn,citizen of the United States of America, residing atVVashington,D1str1ct of Columbia, have invented certain new and usefulImprovements in Filtering-Flues for Gas-Ranges, of which the followingis a specification.

This invention relates to an attachment for gas, electric, or oilranges, in the use of which the grease and the like, that is carried upin the heated air from the articles being cooked, is filtered from theair and caught.

Through the use of the invent1on, the otherwise sure deposit of suchgrease and the like onthe wall and surrounding objects, is entirelyprevented, and a more sani-,

tary and cleanly condition insured.

The invention is readily applicable to all ty es of cooking ranges usinggas or electrlcity. and generally stated, comprises a short flue toreceive the rising grease laden air and to direct same to and through afiltering medium, removably held 1n the stock for convenient renewal. Ahood may, if desired, be supported above the flue, and an additionalfiltering layer arranged in the hood. The main filtering layer is re-vmovably supported in the flue in a simple convenient manner, permittingthe ready renewal-of such material when saturated.

In the drawings Figure 1 is a perspective view illustrating theapplication of the invention.

Fig. 2 is a vertical section through the attachment. 4 I

Fig. 3 is a perspective of the w1re support for the filtering materialand hood.

The improved attachment comprises a short length of pipe 1, hereinaftertermed a flue, which is designed to be connected over the usual outletflange 2 of the stove proper.

This flue, which is of an appropriate length, is designed to direct thegrease-laden air upwardly in a confined area. A filter support isarranged in the top of the flue, such support preferably comprising asingle length of wire 3, formed into parallel strands 4, of suchrelative lengths as to approximate the shape and diameter of the flue.The filter bed thus provided is open, and the wire lengths beyond thesame are projected upwardly, as at 5, and formed at appropriate heightswith ofi'sets 6 to engage over the upper edge of the flue.

Above the offsets-6, the wire lengths are formed to provide arms 7shaped to fit wlthin and support a conical hood-8. The ends of the arms7 enter holes 9 in the hood to thus removably support the hood above thefree end of the flue.

A layer of filtering material of suitable thickness, as 10 is placedloosely on the bed 4, such material as mineral WOOl asbestos, hair, orthe like proving efficient. If desired, and as preferred, a screensection 11 may be removably supported in the outlet end of the hood 8,and such section 11 pro vided with a comparatively thin layer offiltering material.

The assemblage of the parts of the device is obvious, and all grease andthe like will be filtered from the air rising through the flue. Thedeposit of this grease on walls and the like is thus prevented. If steamjets from articles being cooked, such steam is dissipated or condensedby cool air entering between the upper end of flue and hood.

The wire support for the filtering material may be readily removed whennecessary to supply fresh filtering material and this is equally true ofthe upper filter screen. All parts are readily separable when desired,and -may be quickly put in proper position when desired for use.

What is claimed as new, is

1. An attachment for gas, electric or oil cooklng ranges, comprising aflue to receive the air rising from the articles being cooked, a filterbed formed of wire removably supported within said flue, and a hoodremovgbly supported by said filter bed above the 2. An attachment forgas, electric or oil cooklng ranges, comprising a flue to receive theair rising from the articles being cooked, a hood arranged above theflue, a wire member engaging the flue and supporting the hood, and afilter bed within the flue formed by such wire member.

3. An attachment for cooking ranges including a flue to receive the airrising from the articles being cooked, a filter bed constructed ofparallel strands of wire havin upstanding arms, said arms being adaptedto engage the upper edge of the flue to support the parallel strands ofWire transverse the flue near the upper end thereof, whereby to supporta filtering medium adjacent the upper end of the fluein a position forconvonient removal, said arms being extended above the upper edge of theflue to form additional supporting members.

4. An attachment for cooking ranges including a flue to receive the airrising from the articles being cooked, a filter bed constructedofparallel strands of wire having upstanding arms, said arms beingadapted to engage the upper edge of the flue to support the parallelstrands of wire transverse the flue near the upper end thereof, wherebyto support a filtering medium adjacent the upper end of the flue in aposition for convenient removal, said arms projecting above the flue anda hood removably supported by said arms above the flue.

5. An attachment for gas, electric, or oil cooking ranges, comprising aflue to receive the air arising from the articles being cooked, a frameformed of wire removably supported within said flue, a hood removablysupported by said frame, the bottom of the hood spaced from the topedges of the flue and extending beyond the plane of the sides of theflue, and a filtering bed supported at or near the top of the hooddirectly in alinement with the flue.

6. An attachment for cooking ranges including a flue to receive the airarising from the articles being cooked, a frame constructed of strandsof wire at the bottom to engage the inner walls of the flue, and havingupstanding arms which project beyond the top edge of the flue, andhaving a portion adapted to engage said upper edge of the flue tosupport the frame, a hood supported at the upper ends of the arms havingits lower edge spaced from the top edge of the flue, said lower edgeextending beyond the vertical plane of the side-walls of the flue,

and a filtering bed at or near the upper end of the hood, and disposedin alinement with the center of the flue.

In testimony whereof I aflix my signature.

MAXEMILEAN E. KOEHLER.

